Along similar lines, if you get isopropyl alcohol (I use 90% grade, but 70% may also work), after using your razor, dry it off, and spray your razor with the alcohol, the alcohol displaces any remaining water and sanitizes at the same time. It makes the razor last longer. Works on electric razors, too.
Way back when, someone in school did some sort of senior project along these lines. Yeah, as I recall, most of the accumulated damage to razor blades is associated with corrosion rather than wear from cutting.
